About: http://webisa.webdatacommons.org/91063123

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	A communication system in an office or site environment may have a variety of signal sources such as analog and digital telephones, PC's, and video sources that all need to be connected to a network, for example an intranet.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com